Charge compensation and enhanced photoluminescence of Sr 2SiO4:Eu3+, Li+ phosphor

Huang Yu Chen, Shoou Jinn Chang, Min Hang Weng, Ru Yuan Yang

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

A Eu3+ activated strontium silicate phosphor was synthesized by solid-state reaction and Li+ ion was added to balance the charge valence. X-ray powder diffraction analysis confirmed the formation of pure Sr2SiO4 phase without second phase or phases of starting materials irrespective of the adding amount of Li+. Scanning electron microscopy showed large particle size and necking shape were obtained as the concentrations of Li+ ions increase. In the PL studies, the excitation spectrum of Sr2SiO4:Eu3+,Li + phosphors exhibited a broad band in the UV region centered at about 270 nm attributed to charge transfer state (CTS) band. As the Li+ ion concentration increased, the photoluminescence intensity of the red emission at 617 nm of Eu3+ ions was enhanced. The results showed that Li + ion is a effective charge compensators used in Sr 2SiO4:Eu3+ phosphor.

原文English
主出版物標題Materials for Environmental Protection and Energy Application, MEPEA 2011
頁面106-111
頁數6
DOIs
出版狀態Published - 2012
事件2011 International Conference on Materials for Environmental Protection and Energy Application, MEPEA 2011 - Kuala Lumpur, Malaysia
持續時間: 2011 九月 272011 九月 28

出版系列

名字Advanced Materials Research
343-344
ISSN(列印)1022-6680

Other

Other2011 International Conference on Materials for Environmental Protection and Energy Application, MEPEA 2011
國家/地區Malaysia
城市Kuala Lumpur
期間11-09-2711-09-28

All Science Journal Classification (ASJC) codes

  • 工程 (全部)

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